What event sparked world war i?

formation of the triple alliance
serbian assassination of austrian heir to the throne
sinking of the lusitania

Write a descriptive essay as a participant observer describing the culture and the lifestyle of the lakota tribe based on information from the online link. be sure to read all journal excerpts before writing the essay. when possible, include a description of family, education, religion, economic, and political systems you observed in the excerpts.

The answer because i don’t know it someone

Which application of a new technology can be attributed to an invention of thomas edison?